Revert "Remove gmp from AOS"
This reverts commit f37c97684f0910a3f241394549392f00145ab0f7.
We need gmp for SymEngine for symbolicmanipultion in C++
Change-Id: Ia13216d1715cf96944f7b4f422b7a799f921d4a4
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/third_party/gmp/mini-gmp/tests/t-double.c b/third_party/gmp/mini-gmp/tests/t-double.c
new file mode 100644
index 0000000..9a1aa8f
--- /dev/null
+++ b/third_party/gmp/mini-gmp/tests/t-double.c
@@ -0,0 +1,228 @@
+/*
+
+Copyright 2012, 2013, 2018 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
+
+#include <limits.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <float.h>
+
+#include "testutils.h"
+
+#define GMP_LIMB_BITS (sizeof(mp_limb_t) * CHAR_BIT)
+
+mp_bitcnt_t
+mpz_mantissasizeinbits (const mpz_t z)
+{
+ return ! mpz_cmp_ui (z, 0) ? 0 :
+ mpz_sizeinbase (z, 2) - mpz_scan1 (z, 0);
+}
+
+#if defined(DBL_MANT_DIG) && FLT_RADIX == 2
+int
+mpz_get_d_exact_p (const mpz_t z)
+{
+ return mpz_mantissasizeinbits (z) <= DBL_MANT_DIG;
+}
+#define HAVE_EXACT_P 1
+#endif
+
+#define COUNT 10000
+
+void
+test_matissa (void)
+{
+ mpz_t x, y;
+ int i, c;
+
+ mpz_init (x);
+ mpz_init (y);
+
+ mini_urandomb (y, 4);
+ c = i = mpz_get_ui (y);
+
+ do {
+ double d;
+ int cmp;
+
+ mpz_setbit (x, c);
+ d = mpz_get_d (x);
+ mpz_set_d (y, d);
+ if (mpz_cmp_d (y, d) != 0)
+ {
+ fprintf (stderr, "mpz_cmp_d (y, d) failed:\n"
+ "d = %.20g\n"
+ "i = %i\n"
+ "c = %i\n",
+ d, i, c);
+ abort ();
+ }
+
+ cmp = mpz_cmp (x, y);
+
+#if defined(HAVE_EXACT_P)
+ if ((mpz_get_d_exact_p (x) != 0) != (cmp == 0))
+ {
+ fprintf (stderr, "Not all bits converted:\n"
+ "d = %.20g\n"
+ "i = %i\n"
+ "c = %i\n",
+ d, i, c);
+ abort ();
+ }
+#endif
+
+ if (cmp < 0)
+ {
+ fprintf (stderr, "mpz_get_d failed:\n"
+ "d = %.20g\n"
+ "i = %i\n"
+ "c = %i\n",
+ d, i, c);
+ abort ();
+ }
+ else if (cmp > 0)
+ {
+ if (mpz_cmp_d (x, d) <= 0)
+ {
+ fprintf (stderr, "mpz_cmp_d (x, d) failed:\n"
+ "d = %.20g\n"
+ "i = %i\n"
+ "c = %i\n",
+ d, i, c);
+ abort ();
+ }
+ break;
+ }
+ ++c;
+ } while (1);
+
+ mpz_clear (x);
+ mpz_clear (y);
+}
+
+static const struct
+{
+ double d;
+ const char *s;
+} values[] = {
+ { 0.0, "0" },
+ { 0.3, "0" },
+ { -0.3, "0" },
+ { M_PI, "3" },
+ { M_PI*1e15, "b29430a256d21" },
+ { -M_PI*1e15, "-b29430a256d21" },
+ /* 17 * 2^{200} =
+ 27317946752402834684213355569799764242877450894307478200123392 */
+ {0.2731794675240283468421335556979976424288e62,
+ "1100000000000000000000000000000000000000000000000000" },
+ { 0.0, NULL }
+};
+
+void
+testmain (int argc, char **argv)
+{
+ unsigned i;
+ mpz_t x;
+
+ for (i = 0; values[i].s; i++)
+ {
+ char *s;
+ mpz_init_set_d (x, values[i].d);
+ s = mpz_get_str (NULL, 16, x);
+ if (strcmp (s, values[i].s) != 0)
+ {
+ fprintf (stderr, "mpz_set_d failed:\n"
+ "d = %.20g\n"
+ "s = %s\n"
+ "r = %s\n",
+ values[i].d, s, values[i].s);
+ abort ();
+ }
+ testfree (s);
+ mpz_clear (x);
+ }
+
+ mpz_init (x);
+
+ for (i = 0; i < COUNT; i++)
+ {
+ /* Use volatile, to avoid extended precision in floating point
+ registers, e.g., on m68k and 80387. */
+ volatile double d, f;
+ unsigned long m;
+ int e;
+
+ mini_rrandomb (x, GMP_LIMB_BITS);
+ m = mpz_get_ui (x);
+ mini_urandomb (x, 8);
+ e = mpz_get_ui (x) - 100;
+
+ d = ldexp ((double) m, e);
+ mpz_set_d (x, d);
+ f = mpz_get_d (x);
+ if (f != floor (d))
+ {
+ fprintf (stderr, "mpz_set_d/mpz_get_d failed:\n");
+ goto dumperror;
+ }
+ if ((f == d) ? (mpz_cmp_d (x, d) != 0) : (mpz_cmp_d (x, d) >= 0))
+ {
+ fprintf (stderr, "mpz_cmp_d (x, d) failed:\n");
+ goto dumperror;
+ }
+ f = d + 1.0;
+ if (f > d && ! (mpz_cmp_d (x, f) < 0))
+ {
+ fprintf (stderr, "mpz_cmp_d (x, f) failed:\n");
+ goto dumperror;
+ }
+
+ d = - d;
+
+ mpz_set_d (x, d);
+ f = mpz_get_d (x);
+ if (f != ceil (d))
+ {
+ fprintf (stderr, "mpz_set_d/mpz_get_d failed:\n");
+ dumperror:
+ dump ("x", x);
+ fprintf (stderr, "m = %lx, e = %i\n", m, e);
+ fprintf (stderr, "d = %.15g\n", d);
+ fprintf (stderr, "f = %.15g\n", f);
+ fprintf (stderr, "f - d = %.5g\n", f - d);
+ abort ();
+ }
+ if ((f == d) ? (mpz_cmp_d (x, d) != 0) : (mpz_cmp_d (x, d) <= 0))
+ {
+ fprintf (stderr, "mpz_cmp_d (x, d) failed:\n");
+ goto dumperror;
+ }
+ f = d - 1.0;
+ if (f < d && ! (mpz_cmp_d (x, f) > 0))
+ {
+ fprintf (stderr, "mpz_cmp_d (x, f) failed:\n");
+ goto dumperror;
+ }
+ }
+
+ mpz_clear (x);
+ test_matissa();
+}